jewerls jewerls
  • 04-03-2017
  • Mathematics
contestada

X=-6+y x-3y=28 substitution

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wolf1728
wolf1728 wolf1728
  • 04-03-2017
A) x=-6+y
B) x-3y=28
We can substitute equation A into B

B) -6 + y -3y=28
B) 
-2y = 34
y = -17
x = -23

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